[the Legend Of Zelda] Deathly Loneliness [botw] -

For a concept titled a compelling gameplay feature would be The Echo of the Departed. Feature: The Echo of the Departed

You start seeing "Echoes" of the past. For a split second, a ruined house might appear whole, with the translucent silhouettes of NPCs performing daily chores. If you approach, they vanish into ash. [The legend of Zelda] Deathly Loneliness [BotW]

In certain desolate regions of Hyrule—like the ruins of a forgotten village or the peak of a frozen mountain—Link’s "Loneliness Meter" begins to fill. As it rises, the world loses its color, and the ambient music fades into a low, rhythmic heartbeat. For a concept titled a compelling gameplay feature

While under the effect of Deathly Loneliness, Link’s stamina recovers slower, but his "Spirit Sight" is enhanced. This allows you to see hidden treasure chests or ancient paths that are invisible to the living. If you approach, they vanish into ash